US Plant Patent PP16319
Sunmilk
Petunia plant named ‘Sunmilk’
PUBLIC DOMAIN
Patent expired February 19, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on February 5, 2025. This patent earned 14 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16319
- Filed
- February 5, 2005
- Granted
- March 7, 2006
- Expires
- February 19, 2025
- Assignee
- SUNTORY FLOWERS LTD
- Inventor
- IWAKI KAZUNARI; ISHIHARA TAKURO; MIYANO SHINYA
Abstract
A new and distinct cultivar of Petunia plant named ‘Sunmilk’, characterized by its outwardly spreading and decumbent plant habit; vigorous and freely branching growth habit; relatively small leaves; numerous light yellow green to white-colored flowers with red purple-colored venation; long flowering period; and good garden performance.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Petunia plant named ‘Sunmilk’, as illustrated and described.
Read the full patent: US Plant Patent PP16319 in full — the complete specification, every figure, and the file history.